jprante’s gists

jprante / OpenAlexAwsClientTest.java

Last active January 31, 2024 09:47

Download all works from OpenAlex S3 with AWS Java SDK


	import java.io.BufferedReader;
	import java.io.IOException;
	import java.io.InputStreamReader;
	import java.nio.file.Files;
	import java.nio.file.Path;
	import java.util.List;
	import java.util.concurrent.CopyOnWriteArrayList;
	import java.util.concurrent.ExecutionException;
	import java.util.concurrent.TimeUnit;

jprante / MultiplexCodecCleartextHttp2Test.java

Created March 11, 2018 13:43

Http2MultiplexCodec demo for cleartext HTTP/2 between a server and a client (Netty 4.1.22)

	package org.xbib.netty.http.server.test.simple;

	import io.netty.bootstrap.Bootstrap;
	import io.netty.bootstrap.ServerBootstrap;
	import io.netty.buffer.ByteBuf;
	import io.netty.channel.Channel;
	import io.netty.channel.ChannelHandlerContext;
	import io.netty.channel.ChannelInboundHandlerAdapter;
	import io.netty.channel.ChannelInitializer;
	import io.netty.channel.ChannelPipeline;

jprante / SimpleHttp1Test.java

Last active March 8, 2018 15:15

Netty ObjectCleanerThread leak?

	package org.xbib.netty.http.client.test.simple;

	import io.netty.bootstrap.Bootstrap;
	import io.netty.channel.Channel;
	import io.netty.channel.ChannelHandlerContext;
	import io.netty.channel.ChannelInitializer;
	import io.netty.channel.EventLoopGroup;
	import io.netty.channel.SimpleChannelInboundHandler;
	import io.netty.channel.nio.NioEventLoopGroup;
	import io.netty.channel.socket.SocketChannel;

jprante / gist:3f167c34d81e1ccf3053a339c385057e

Last active January 4, 2017 08:32

javac StackOverflowError

	java -version
	openjdk version "1.8.0_112"
	OpenJDK Runtime Environment (Zulu 8.19.0.1-linux64) (build 1.8.0_112-b16)
	OpenJDK 64-Bit Server VM (Zulu 8.19.0.1-linux64) (build 25.112-b16, mixed mode)

	Looks a bit like https://bugs.openjdk.java.net/browse/JDK-8143898 but it's another issue: there is no safety mechanism
	(or a failing mechanism) in the Java compiler to guard against massive nested method calls like a.add(b).add(c)...
	on tight thread stack size. It happened on a Linux 40 core CPU machine with 64 GB RAM when >700 nested method calls
	are parsed by javac. Default on Linux is -J-Xss1m which is exceeded, -J-Xss2m works. Also smaller machines (laptops)
	with lower CPU core count and lower RAM size are exempted from this error. javac reads the total amount of RAM

jprante / DocDate.groovy

Created December 10, 2016 22:38

Dates in Elasticsearch 5 with Groovy/Java

	@Grab(group='org.elasticsearch.client', module='transport', version='5.0.2')
	@Grab(group='org.apache.logging.log4j', module='log4j-core', version='2.6.2')
	@Grab(group='org.apache.logging.log4j', module='log4j-api', version='2.6.2')

	import org.elasticsearch.action.admin.indices.create.CreateIndexAction
	import org.elasticsearch.action.admin.indices.create.CreateIndexRequestBuilder
	import org.elasticsearch.action.index.IndexAction
	import org.elasticsearch.action.index.IndexRequestBuilder
	import org.elasticsearch.action.search.SearchResponse
	import org.elasticsearch.action.support.WriteRequest

jprante / gist:35041580b6d4a31d2041df54812e1461

Last active October 4, 2016 07:55

Build of Elasticsearch 2.3.5 from source

	uname -a
	Darwin Jorg-Prantes-MacBook-Pro.local 13.4.0 Darwin Kernel Version 13.4.0: Mon Jan 11 18:17:34 PST 2016; root:xnu-2422.115.15~1/RELEASE_X86_64 x86_64

	java -version
	java version "1.8.0_102"
	Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
	Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)

	env \| grep JAVA
	JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home

jprante / gist:efc3ef7988e89c1b859fcced4c99da61

Created August 3, 2016 11:11

Parent/child

jprante / NetworkInterfaceTester.java

Last active April 18, 2016 20:55

Test network interfaces with java

	import java.net.InetAddress;
	import java.net.NetworkInterface;
	import java.util.Collections;
	import java.util.Enumeration;

	public class NetworkInterfaceTester {

	public static void main(String[] args) throws Exception {
	Enumeration<NetworkInterface> nets = NetworkInterface.getNetworkInterfaces();
	for (NetworkInterface netint : Collections.list(nets)) {

jprante / arabic.txt

Created April 10, 2016 20:14

Arabic text with Elasticsearch

jprante / ilovees2.txt

Created March 7, 2016 16:25

I love ES Pt. 2

Jörg Prante jprante